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Performance Analysis of an Adaptive-MCM System with Combining AMC and MIMO Schemes

2010; Springer Science+Business Media; Volume: 2184; Issue: 1 Linguagem: Inglês

1611-3349

Changwoo Seo, Insik Cho, Gil-Sang Yoon, Jeonghwan Lee, Sherlie Portugal, Intae Hwang,

Antenna Design and Analysis

In this paper, we proposed a system that combines AMC and MIMO schemes. While conventional AMC system changes only the coding rate and modulation, the proposed Adaptive-MCM system also selects the MIMO scheme (diversity, multiplexing) according to channel condition. Furthermore, by applying pre-coding and antenna subset-selection we not only produce optimal performance but also increase the data rate. In case of Non-Adaptive-MCM, the simulation results show that even thought, this system secures enough SNR, and its maximum throughput is limited. As for the Adaptive-MCM System, the simulation shows an overall average data rate increase, and a maximum throughput of 1440kbps that can be achieved because the schemes corresponding to the MCM levels are assigned dynamically. This probes that the Adaptive-MCM system increases the average data rate by improving the trade-off between SNR and throughput.